M ar 2 00 8 Complex Chemistry in Star-Forming Regions : An Expanded Gas-Grain Warm-up Chemical Model

Gas-phase processes were long thought to be the key formation mechanisms for complex organic molecules in star-forming regions. However, recent experimental and theoretical evidence has cast doubt on the efficiency of such processes. Grain-surface chemistry is frequently invoked as a solution, but until now there have been no quantitative models taking into… CONTINUE READING